Are there any apps or commands that can ping an IP address, website, or other host? And if so, are there any options for setting packet size, continuous ping or other options you commonly see in a Windows ping command?
Not sure about the Tour but the Bold has a built in ping function. Manage connections->Wi-Fi Options Menu key->Wi-Fi Tools->Ping it has the following options
Ping Type (IP or Name)
Ping to:
Number of pings
Frame Size (bytes)